Valve Clearance - Honda Prelude 1993 Service Manual

Valve Clearance
Adiustment
NOTE:
. Valves should be adjusted cold when the cylinder head
temoerature is less than loOoF {38oC).
. After adiusting, retorque the crankshaft pulley bolt to
22O N.m (22.0 kg-m, 159 lb-ft).
1. Remove the cvlinder head cover.
INTAKE
EXHAUST
2.
Set No. 1 piston at TDC.
"UP" mark on the camshaft
pulley should be at top, and TDC grooves on the cam-
shaft pulley should align with cylind€r h€ad surface.
Numbor 1 riston at TDC:
N o . 4 N o . 3 N o , 2 N o . 1
N o . 4 N o . 3 N o . 2 N o . 1
@-€
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) l-24
6-34
Adjust valves on No. 1 cylinder.
Intake: 0.26 mm {o.o1o in} 1333fll13.ffi!lll
Exhaut: o.30 mm {0.o12 in) 13.33ffi13ffi9ili
Loosen locknut and turn adjustment screw untilJeeler
gauge slides back and forth with slight amount ofdrag.
LOCKlrlUTTxO.T5mm
20 N.m (2.0 kg-m, 14lb-ft)
Apply engine oil.
Tighten locknut 8nd check clearance again. Repeat ad-
justment if necessary.
5.
FEELER GAUGE